Pharvaris Presents Data Supporting Ongoing Clinical Development of Deucrictibant in Bradykinin-Mediated Angioedema

Core Insights - Pharvaris is advancing its late-stage clinical development of deucrictibant, a novel oral bradykinin B2 receptor antagonist aimed at treating bradykinin-mediated diseases such as hereditary angioedema (HAE) and acquired angioedema due to C1 inhibitor deficiency (AAE-C1INH) [1][18] - The company plans to present pivotal data readouts for deucrictibant in the next 18 months, highlighting its commitment to addressing unmet medical needs in this area [2][4] Prophylaxis - The ongoing Phase 2 CHAPTER-1 open-label extension study shows that oral deucrictibant maintains a low attack rate for over a year and a half, regardless of baseline attack rates [3] - Participants in the CHAPTER-1 study reported significant improvements in health-related quality of life (HRQoL) and treatment satisfaction, with all participants indicating well-controlled HAE [4] - A pharmacokinetics study demonstrated that the extended-release (XR) formulation of deucrictibant supports once-daily dosing, showing a four-fold higher mean plasma concentration than the therapeutic threshold at 24 hours [5][7] On-Demand Treatment - A post-hoc analysis of the RAPIDe-1 and RAPIDe-2 trials indicated that 95-100% of HAE attacks treated with a single dose of deucrictibant achieved symptom relief without recurrence [9] - The median time to onset of symptom relief was reported as 1.1 hours, with 97.8% of attacks achieving relief within 12 hours [10][11] - Deucrictibant was well tolerated across various attack types, including upper airway attacks, with no treatment-related adverse events reported [11] Expansion Beyond HAE - Pharvaris is exploring a novel biomarker assay for diagnosing bradykinin-mediated angioedema, which could enhance the identification and management of related conditions [12] - The company is also assessing the patient experience and outcome measures for AAE-C1INH, aiming to develop a conceptual model to support clinical assessments [14] - A systematic literature review estimated the prevalence of HAE-C1INH in the EU and UK to be between 0.05-0.33 per 10,000 individuals, indicating a significant need for effective treatments [15]